SDR 97ZZZX3882

Service difficulty report · Bearing

Difficulty date
May 15, 1997
Submitted
March 26, 2000
Operation
General aviation
Engine
Lyc LTS101750B1
Part
Bearing
Part number
430101401
Condition
Spalled
Location
Gearbox Pto
Part time
3,016 hours
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ENGINE WAS RECEIVED FOR MAKING METAL. CHIP ANALYSIS INDICATED METAL WAS COMING FROM GEARBOX. UPON DISASSEMBLY, FOUND THE PTO FORWARD BEARING TO HAVE SEVERE SPALLING OF BALLS AND RACES. ALSO, FOUND SEVERAL WORN BEARING LINERS IN THE GEARBOX CASE AND COVER.